Minutes before Box founder and CEO Aaron Levie took the stage at the D11 conference today, PayPal cofounder Max Levchin announced his newest startup: "Glow" a mobile app that uses big data to help a woman get pregnant.

Levie, one of the funniest men in the enterprise tech industry today, couldn't resist a wisecrack.

"One piece of advice for Max. He was talking about partnerships. Seems like there's a natural partnership with Bang With Friends," he said, making his on stage interviewer, AllThingsD's Walt Mossberg, chuckle.

Bang with Friends is a controversial and super popular dating app that helps people hook up with their crushes via Facebook. It sends the person a "nudge" that indicates your interest. If that person is agreeable, the two of you can take it offline from there. Apple recently banned it from its App store.